Weft stop-motion for narrow-ware looms.



Patented Mar. 25, I902.

F. B. WILKINS.

WEFT STOP MOTION FOR NARROW WARE LOOMS.

(Application filed Nov. 22, 1901.)

(No Model.)

EeOZBWZZZZZ. I

W itnesses.

Attorney;

'1 OFFICE.

FRED B. \VILKINS, OF WOONSOOKET, RHODE ISLAND.

WEE-"T STOP-MOTlON FOR NARROVV-WARE LOOIVIS.

SPEUIFIGATION forming part of Letters Patent N 0. 695,982, dated March25, 1 902. Application filed November 22, 1901. serial No. 83,264. (Nomodel.)

To all whom, it may concern..-

Be it known thatI, FRED B.WILKINs, a resident of the city ofW'oonsocket, in the county of Providence and Stateof Rhode Island,- haveinvented certain new and useful Improvements in Weft Stop-Motions forNarrow-WVare Looms; and I do hereby declare that the following is afull, clear, and exact description thereof, reference being had to theaccompanying drawings, and to the letters of reference marked thereon,which form a part of this specification.

This invention relates to weft stop-motions for narrow-ware looms usedfor weaving tapes, ribbons, and other like fabric. It is fully describedand illustrated in this specification and the annexed drawings.

Figure 1 represents a top View of the device attached to a part of thebreast-beam of a loom with a shuttle passing. Fig. 2 shows an elevationof the device on the breast-beam in section with the parts connectingthe stop-m 0- tion with the shipper-bar that casts off the belt. Fig. 3is a part of the breast-beam from the inner side.

The construction and operation of the invention are as follows:

A represents part of a breast-beam of a loom.

C is a plate arranged to slide under a plate J, made fast on the top ofthe breast-beam A.

This plate 0 extends when clear in so as nearly to touch the reed whenit heats up the filling and has a square hole T in it near its inner nd.A leverD pivots in a stud extending down from the under side of thesliding plate 0 (see Fig. 2) and has on the upper side of the inner enda number of thin plates g, placed side by side,-with a narrow spacebetween them. These plates are so placed as to stand with their upperends in the hole T in the plate 0, so as to bear up against the woventape as it passes over it in the process of weaving.

A small shaft F is placed just under the breast-beam A and held at eachend in bearings in the end frames of the loom. A hub G, held loosely onthis shaft, has two arms or levers M and V extending from it in towardthe lathe K, (see Fig. 2,) and the lower one of these levers M holds thedagger N,which is arranged to be held up so that its end will not bestruck by the hunter P on the lathe K, when the plates 9 are preventedfrom rising in the-hole 'l by the woven tape web 0 passing over them,the dagger N being held up by the wire R, which connects it with theouter end of the plate-leverD. The other lever Von the same hub G has aroll on the stud r on its inner end arranged to stand over the lever E,that holds the end of the shipper H in a notch 70, made in itsupperside, so that when the dagger N is allowed to drop, so as to bestruck by the hunter]? in beating up, the roll 1' will push down theleverE, as shown by the dotted lines, and release the end ll of theshipper, so that it will spring inward and by throwing off the belt stopthe loom.

The plate J is preferably a piece of angleiron that extends across thetop of the breastbeam A and'down on its front to hold the parts of thebeam in line, as it is parted here and a Vacant space left (see Fig. 3)to allow the lever D on the sliding plate to fall back without strikingthe breast-beam. A hole a is made through the front of the angle-iron toreceive the sliding plate 0, (see Fig. 8,) and ways are attached to theunder side from the hole 72 to support the sliding plate 0. A notch a ismade in one side of the slidingplate 0, and a spring-detent b is placedon one side (see Fig. 1) Where the angle-iron is broken away, so as tospring into the notch and prevent the plate from moving back too easily.

The object of allowing the plate 0 to slide back is to avoid smashingthe shuttle S when it happens to stop in front of the plate 0, as thepeculiar shape of the shuttles used in the narrow-ware looms makes itincapable of withstanding a blow on the front.

In loomsofthis class, because of the shape of the shuttles and theirlimited motion, it is not found feasible to apply the well-known weftstop-motion used on wide looms, that stop the loom instantly when thefillingthread breaks or runs out, and the users are satisfied if theycan stop the loom before it has run many picks after the failure of thefilling. This idea of a stop-motion has been tried and found to workwell, as it will be readily seen that so long as the filling-thread isintact and .the warp as it passes over the hole T in the plate 0 has thefilling-thread in by the dotted lines and free the end of the shipper Hfrom the notch 70, so it will spring back and throw olf the driving-beltand stop the loom.

Having thus described my improvements, what I claim as my invention, anddesire to secure by Letters Patent, is-- 1. In a narrow-Ware loom thecombination of a narrow plate held to slide in ways on the top of thebreast-beam and having a hole in r it near its inner end, a notch insaid plate, a spring-detent to enter said notch in the plate and detainit in normal position, a lever held on a pivot in a stud on the underside of said plate, thin vertical plates held on the top of the innerend of said lever and under the hole in said narrow plate, and means forconnecting said lever with the belt-shipper, substantially as described.

2. In a narrow-ware loom, a plate held on the top of the breast-beamextending nearly to the reed when beating up and having a hole in itnear its inner end, in combination with a horizontal lever held on apivot on its under side and having thin Vertical plates on the upperside of its inner end, a knee-lever held to swing on a shaft under thebreastbeam and having a dagger in the end of one arm and a stud in theend of the other arm, a lever holding the belt-shipper and arranged tobe struck by said stud, a connecting-link between said dagger and thehorizontal lever, substantially as described.

In testimony whereof I have hereunto set my hand this 15th day ofNovember, A. D. 1901.

FRED B. WILKINS.

